Slide for furniture and the like



Nov. 13,1925. 1,559,545

R. S. BOOTH suns FOR FURNITURE AND m: LIKE Filed Nov; 29, 1921INVENTORIIILIT fiwgfaw BY ATTQRNEYQ A:

Ares

UNITED ST PATENT OFFICE.

ROBERT s. BOOTH, or WATER URY, ooNnEoriour, ASSIGNOR To BERBEGKER. &ROW- LAND MANUFACTURING coMPANY, or WATERVILLE, o0NNEc'rIcUT, ooEroRA-TION OF CONNECTICUT.

- sLrnE FOR FURNITURE AND THE LIKE. 7

Application filed November 29, 1321. Serial No. 518,535.

To all whom it may concern:

Be it known hat I, ROBERT S. BOOTH, a

citizen of the United States, residingin.

WVaterbury, in the county of New Haven, in the State of Connecticut,have invented certain new and useful Improvements in Slides forFurniture and the like, of which the following is a specification.

The invention relates to an improvement in antifriction slides forfurniture and the like. v I

It has been proposed heretofore to provide the legs or supports ofchairs, tables and other articles of furniture with anti-frictio'nslides or tips to serve in the place of casters. Such slides or tipshave gone into extensive use and their advantage over casters forcertain purposes is well known. One form of such slide or tip consistsof a sheet metal disc having a smooth, convex bottom surface providedwith an upturned rim from which project a plurality of pointed prongswhich are adapted to be driven 1D- to the bottom of the legs or supportsof is relatively expensive to manufacture. An

other form of slide consists of a disc having a smooth, convex bottomsurface and provided with a centrally arranged prong or shank which isadapted to be driven into the bottom of the leg or support of thearticle of furniture. This form of slide possesses the advantage ofbeing readily attached to the article of furniture, but as heretoforeconstructed it has also been relatively expensive to manufacture. Theobject of the present invention is to produce an improved anti-frictionslide or tip of the centrally arranged prong or shank type, which willbe relatively cheap to manufacture and will be efiicient and durable inuse. To the accomplishment of this object the invention consists in theimproved antifriction slide for furniture hereinafter described andparticularly pointed out in the claims. 7

The preferred form of the invention is shown in the accompanyingdrawings in which Fig. 1 is a bottom plan of the imarticle of furniture.i

The improved anti-friction slide or tipfor furniture and the like asillustrated in the drawings, consists of a disc or slide. proper 5.and'a-prong or'shank 6 by which the slide is attached to the bottom ofthe leg or support of they article of furniture, as shown in Fig. 3. Theprongor shank 6 is securely fastened to the center of the upper surface7 of the slide, as shown in Fig. 2, by forcing a portion of the uppersurface of the slide over the head 8 of the shank in any usual or wellknown manner.-

Inasmuch as aportion of the central partof theslide is used to overlapthe head of the prong or shank in securing the latter to the slide, thecentral part of the slide is necessarily thinner than the outer part orrim of the slide. Hence, the central part of the slide consisting of aconvex'bearing surface and a centrally arranged attaching shank isdeprived of some of its wearing surface.

To prevent the relative thin central por-' tion of the slide where theshank is secured thereto from being subjected to wear and thereforeexposed to the liability of the slide wearing through to the head of theshank, the present invention contemplates a slide or'tip having anannular bottom or bearing surface. By providing an annular bearingsurface, a maximum of durability is secured without impairment ofefficiency or interference with'ease of moving the article of furniture.That is to say, the greater bearing surface resulting by reason of itsannular form involves no appreciable greater friction than the usualconvex bearing. surface. The annular bearing surface is formed as aconvexity 10 in the outer part or rim 11 of the slide. The annularconvexity or bearing surface 10 surrounds a central, depressed portion12, as shown in Fig. 2. The whole slide is adapted for manufacture on anautomatic machine. By providing the slide with the thickened annularconvexity 10 as a bearing surface and by depressing the central portion12 of the slide so that it is not exposed to wear, a slide of maximumdurability is produced. At the sainetime,

g c, r 1,559,545

' friction slide or tip for furniture which is efficient and durable inuse and relatively cheap to manufacture. I

Having thus described the invention what is claimed as new is 1. Thecombination with an article of furniture, of a slide member connectedthereto, said slide member comprising a disk having an annular portionproviding a convexity designed to. form an annularbearing surface, theupper edge of said an nular portion. beingadapted to contact the articleof furniture for receiving the loads at all points on said upper edge,said disk being provided with a central portion forming a convexity,'theupper surface of which is spaced from the article of furniture and theundersurface of which is spaced from the bearing surface andfrom thefloor, and means involving a centrally located member having one endconnected to the central portion of the diskforming-the convexity, andthe other end secured to the article of furniture, said member beingadapted totransrnit a portion of the load to. the central convexity ofthe disk.

2. The combination with an article of furniture, of a slide memberconnected thereto, said slide member comprising a disk having an annularportion providing. a

convexity designed to form an annular. bearing surface, the upper'edgeof said annular portion being adapted tofconta'ct the article offurniture and receive loads at all points on said edge, said disk beingprovided with a central portion forming a convexity, the upper surfaceof which is spacedfrom the article of furniture and the. undersurface ofwhich-is spaced from the bearing surface and from the floor, and a pinsecured.

ta the slide member. with its shank portion projecting from the uppersurface of the portion of the disk forming the central convexity forengagement with the article of furniture, and its head portioncontacting the upper surface of said central convex portion, saidcentral convex portion acting to support and retain the pin in position.

8. As an article of manufacture, a slide for furniture and the likecomprising a. disk having a portionproviding an annular convexity, thebottom face of which forms a bearing surface and the outer surroundingedge of which is adapted to contact the article of furniture and providea support therefor at all points on said edge for receivingthe loads,said disk being formed with a central portion forming a. convexity, theupper face of which is spaced from the article of furniture and theunderface of which is spaced from theannular bearing surface, and a pinconnected to said cen tral portion, said pin beingv supported againstlateral movement by adjacent portions of the upper surface of thecentral convexity and having its'head portion resting thereon fortransmitting a portion of the vertical loads to said central convexportion. I

4:. As an article of manufacture, a slide for furniture and the likecomprising a disk having a portion providing an annular convexity, thebottom face of which forms a bearing surface and the outer surroundingedge of which is adapted to contact the article of furniture and providea support therefor at all points on said edge for receiving verticalloads, said disk being provided with a central portion forming aconvexity, the upper face of which is spaced from the article ofmanufacture and the underface of which is spaced from the annularbearing surface, an attaching pin adapted to transmit both the verticaland lateral loads to the disk, and means including, a bendable portionof the disk for connecting said pin tolthe upper surface of. saidcentral convexed portion.

ROBERT BOOTH.

